Third-order nonlinear optical material
A third-order nonlinear optical material comprising a complex compound represented by the general formula:A.sub.k B.sub.l (LIG.sub.a).sub.i (LIG.sub.b).sub.j (1)wherein A represents one metallic element selected from the group consisting of Cr, Mo and W; B represents one metal selected from the group consisting of Ni, Pd and Pt; each of LIG.sub.a and LIG.sub.b represents one ligand selected from the group consisting of monodentate and higher ligands; k is an integer of 0 or 1 to 4; l is an integer of 0 or 1 to 4; k+l is 2 or 4; i is an integer of 0 to 18; j is an integer of 0 to 18; and i+j is an integer of 1 to 18; provided that i and i+j are determined depending on the type and number of metals and the types of LIG.sub.a and LIG.sub.b.
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Claims
1. A third order nonlinear optical device comprising a material comprising a complex compound represented by the general formula:
2. The device of claim 1, wherein the complex compound is represented by the general formula (1) wherein A=Mo, k=2, l=0, i=0, LIG.sub.b =6-diphenylphosphino-2-pyridonate and j=4.
3. The device of claim 1, wherein the complex compound is represented by the general formula (1) wherein A=Mo, k=2, B=Pt, l=2, LIG.sub.a =X, wherein X is a halogen selected from the group consisting of F, Cl, Br, and I, i=2, LIG.sub.b =6-diphenylphosphino-2-pyridonate and j=4.
4. The device of claim 3, wherein the complex compound is represented by the general formula (1) wherein A=Mo, k=2, B=Pt, l=2, LIG.sub.a =Cl, i=2, LIG.sub.b =6-diphenylphosphino-2-pyridonate and j=4.
5. The device of claim 3, wherein the complex compound is represented by the general formula (1) wherein A=Mo, k=2, B=Pt, l=2, LIG.sub.a =Br, i=2, LIG.sub.b =6-diphenylphosphino-2-pyridonate and j=4.
6. The device of claim 3, wherein the complex compound is represented by the general formula (1) wherein A=Mo, k=2, B=Pt, l=2, LIG.sub.a =I, i=2, LIG.sub.b =6-diphenylphosphino-2-pyridonate and j=4.
7. The device of claim 1, wherein the complex compound is represented by the general formula (1) wherein A=Mo, k=2, B=Pd, l=2, LIG.sub.a =X, wherein X is a halogen selected from the group consisting of F, Cl, Br, and I, i=2, LIG.sub.b =6-diphenylphosphino-2-pyridonate and j=4.
8. The device of claim 7, wherein the complex compound is represented by the general formula (1) wherein A=Mo, k=2, B=Pd, l=2, LIG.sub.a =Cl, i=2, LIG.sub.b =6-diphenylphosphino-2-pyridonate and j=4.
9. The device of claim 7, wherein the complex compound is represented by the general formula (1) wherein A=Mo, k=2, B=Pd, l=2, LIG.sub.a =Br, i=2, LIG.sub.b =6-diphenylphosphino-2-pyridonate and j=4.
10. The device of claim 7, wherein the complex compound is represented by the general formula (1) wherein A=Mo, k=2, B=Pd, l=2, LIG.sub.a =I, i=2, LIG.sub.b =6-diphenylphosphino-2-pyridonate and j=4.
11. The device of claim 1, further comprising a solvent.
12. The device of claim 11, wherein said complex compound is dissolved in said solvent to attain a concentration of said complex compound of 0.01 to 0.5% by weight.
13. The device of claim 11, wherein said solvent is a member selected from the group consisting of dichloromethane, benzene, tetrahydrofuran, chlorobenzene and dimethoxyethane.
14. The device of claim 1 wherein at least one of LIG.sub.a and LlG.sub.b is monodentate and is selected from the group consisting of: X.sup.- wherein X is a halogen; R.sup.- wherein R is H, an alkyl of C.sub.n H.sub.2n+1, wherein n is 1 to 5; an aromatic ring which is unsubstituted or substituted with methyl, ethyl or phenyl; NCS.sup.-; and NCMe.sup.-.
15. The device of 1 wherein at least one of LIG.sub.a and LIG.sub.b is bidentate and is selected from the group consisting of: RCOO.sup.-, wherein R is H, an alkyl of C.sub.n H.sub.2n+1, wherein n is 1 to 5; an aromatic ring which is unsubstituted or substituted with acetate, propionate, or benzoate; and an organic compound whose fundamental structure has at its 1- and n positions (n=3, 4, 5, 6, and 7) elements being identical to each other or different from each other and selected from the group consisting of N, O, S, and P, these N, O, S, and P being crosslinked by an alkyl or a group included in an aromatic ring.
16. The device of claim 1 wherein at least one of LIG.sub.a and LIG.sub.b is terdentate and is an organic compound whose fundamental structure has at its 1-, n- and m- positions (n=3, 4, 5, 6, and 7; m=n+2,3,4,5,6) elements being identical to each other or different from each other and selected from the group consisting of N, O, S, and P, these N, O, S, and P being crosslinked by an alkyl or a group included in an aromatic ring.
17. The device of claim 1 which is selected from the group consisting of a fast switch, an optical logical circuit, an optical memory, a phase correction device, a phase conjugate mirror or an image transmission material.
18. A method of making an optical device having high third order nonlinear optical effects comprising manufacturing the device from a material comprising a complex compound represented by the general formula:
19. The method of claim 18 wherein the complex compound is represented by the general formula (1) wherein A=Mo, k=2, l=0, i=0, LIG.sub.b =6-diphenylphosphino-2-pyridonate and j=4.
20. The method of claim 18 wherein the complex compound is represented by the general formula (1) wherein A=Mo, k=2, B=Pt, l=2, LIG.sub.a =X, wherein X is a halogen selected from the group consisting of F, Cl, Br, and I, i=2, LIG.sub.b =6-diphenylphosphino-2-pyridonate and j=4.
21. The method of claim 20 wherein the complex compound is represented by the general formula (1) wherein A=Mo, k=2, B=Pt, l=2, LIG.sub.a =Cl, i=2, LIG.sub.b =6-diphenylphosphino-2-pyridonate and j=4.
22. The method of claim 20, wherein the complex compound is represented by the general formula (1) wherein A=Mo, k=2, B=Pt, l=2, LIG.sub.a =Br, i=2, LIG.sub.b =6-diphenylphosphino-2-pyridonate and j=4.
23. The method of claim 20, wherein the complex compound is represented by the general formula (1) wherein A=Mo, k=2, B=Pt, l=2, LIG.sub.a =l, i=2, LIG.sub.b =6-diphenylphosphino-2-pyridonate and j=4.
24. The method of claim 18, wherein the complex compound is represented by the general formula (1) wherein A=Mo, k=2, B=Pd, l=2, LIG.sub.a =X, wherein X is a halogen selected from the group consisting of F, Cl, Br, and I, i=2, LIG.sub.b =6-diphenylphosphino-2-pyridonate and j=4.
25. The method of claim 24, wherein the complex compound is represented by the general formula (1) wherein A=Mo, k=2, B=Pd, l=2, LIG.sub.a =Cl, i=2, LIG.sub.b =6-diphenylphosphino-2-pyridonate and j=4.
26. The method of claim 24, wherein the complex compound is represented by the general formula (1) wherein A=Mo, k=2, B=Pd, l=2, LIG.sub.a =Br, i=2, LIG.sub.b =6-diphenylphosphino-2-pyridonate and j=4.
27. The method of claim 24, wherein the complex compound is represented by the general formula (1) wherein A=Mo, k=2, B=Pd, l=2, LIG.sub.a =I, i=2, LIG.sub.b =6-diphenylphosphino-2-pyridonate and j=4.
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Type: Grant
Filed: Jul 30, 1997
Date of Patent: Oct 5, 1999
Assignee: Agency of Industrial Science & Technology (Tokyo)
Inventors: Toru Sakaguchi (Ikeda), Koji Ohta (Ikeda), Akira Nakamura (Toyonaka), Kazushi Mashima (Toyonaka)
Primary Examiner: Philip Tucker
Law Firm: Nikaido Marmelstein Murray & Oram LLP
Application Number: 8/903,065
International Classification: F21V 900; G02F 135;